The Architectonicidae and Mathildidae (Gastropoda, Heterobranchia) of the Miocene Paratethys Sea-victims of the Miocene Climatic Transition Author Harzhauser, Mathias 0000-0002-4471-6655 Natural History Museum Vienna, Burgring 7, 1010 Vienna, Austria. mathias. harzhauser @ nhm-wien. ac. at; https: // orcid. org / 0000 - 0002 - 4471 - 6655; mathias.harzhauser@nhm-wien.ac.at Author Landau, Bernard 0000-0002-4471-6655 Natural History Museum Vienna, Burgring 7, 1010 Vienna, Austria. mathias. harzhauser @ nhm-wien. ac. at; https: // orcid. org / 0000 - 0002 - 4471 - 6655; & Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, Netherlands; Instituto Dom Luiz da Universidade de Lisboa, Campo Grande, 1749 - 016 Lisboa, Portugal; and International Health Centres, Av. Infante de Henrique 7, Areias São João, P- 8200 Albufeira, Portugal. bernardmlandau @ gmail. com; https: // orcid. org / 0000 - 0002 - 7768 - 8494 & Natural History Museum Vienna, Burgring 7, 1010 Vienna, Austria. mathias. harzhauser @ nhm-wien. ac. at; https: // orcid. org / 0000 - 0002 - 4471 - 6655; mathias.harzhauser@nhm-wien.ac.at text Zootaxa 2023 2023-11-14 5370 1 1 74 https://www.mapress.com/zt/article/download/zootaxa.5370.1.1/52270 journal article 10.11646/zootaxa.5370.1.1 1175-5334 10147814 48903495-7C6C-46E4-9B1B-D6A2F2781873 Mathilda brocchii Semper, 1865 * Mathilda brocchii Semper —Semper 1865: 338, pl. 13, fig. 3. M [ athilda ]. brocchii O. Semp. — Boettger 1902: 155 . Discussion. This species was described by Semper (1865) from the Pliocene of Bologna ( Italy ). Boettger (1902) mentioned it also from Coşteiu des Sus ( Romania ) and Baden ( Austria ) ( Boettger 1902 ). We did not see material of this species in the NHMW collection.